Airfree Lotus Filterless Air Purifier Review In 2022: Blossoming clean air!

A filterless air purifier that resemblance to a beautiful Lotus flower. Airfree Lotus would be the one if you are opting for a 100% maintenance-free air cleaner. Powered by the patented and exclusive Thermodynamic TSS technology, what are the differences between Airfree Lotus and Iris 3000? Could the sterilizing performance match with other filter-based air purifiers? What about the noise level and power usage? Get the answers and specifications in our detailed review below.
online price (US)**
±399.00 $$$$$/ 7

(annual filter cost ±0)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

Airfree Lotus Specification

ProductAirfree Lotus
7.7 x 13 x 7.7 in
(19.6 x 33 x 19.6 cm)
Weight3.3 lb (1.5 kg)
Coverage (up to)650 sq. ft. (60 m2)
Airflow speed
Dust free (CADR)
Pollen free (CADR)
Smoke free (CADR)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
HEPA filter
- Lifespan
- Replacement cost ($)
Carbon filter
- Lifespan
- Replacement cost ($)
Ionizer/ TechnologiesPatented Thermodynamic TSS Technology
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Optional/ Addon
Noise levelSILENT
Power usage level52 W
Timer/ Scheduler
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty2 years
Email/ Phone support

Key Features

  • Exclusive Patented Thermodynamic TSS Technology
  • Compact and lightweight design
  • Environmentally-friendly filterless purification
  • Completely silent operation
  • No ozone or ion emissions
  • Selectable multi-color night light
  • 2 years warranty

Design And Usability

Airfree Lotus dimension
7.7 x 13 x 7.7 in
(19.6 x 33 x 19.6 cm)
Airfree Lotus weight
3.3 lb (1.5 kg)

Airfree Lotus design is unique in many ways. the 7.7 x 13 x 7.7 dimension is relatively short unlike most air cleaners. The weight is consistent at 3.3 lb which means moving it from room to room is a breeze (remember to turn off the air purifier before moving). Inspired by the mysticism of the Lotus flower, the beautiful color light will beam up like flower petals blossoming. Great for home decor or as a night light for children when they are trying through the dark. Air inlet is located at the bottom air convection while air outlet is at top. Carrying around the air purifier is as easy as carrying a laptop thus no issue packing it for travel.

Being a Portugal made product, the build quality is good with no signs of off-gassing. Like all Airfree air purifiers, there is only 1 control and it is for the adjustable night light. You can adjust the light intensity or color via the touch control sensor. Other than that, it is the ultimate form of a plug and play model.

To keep the Airfree Lotus in perfect shape, do not leave it under direct light e.g. at windows or outdoor. Instead, place it indoor and a few feet off the wall or sofa. Make sure the air inlet and outlet are not blocked from airflow distribution. Airfree Lotus is safe for children and pets as it does not emit ions, ozone, or any harmful byproducts back. Just make sure they do not insert their fingers or small objects like a pin, rod, or coin into the vents.

With no other function to talk about, let’s quickly recap on its features. Airfree Lotus air purifier is CARB certified ozone-free with 2 years warranty. It comes with passive safety tech to prevent any short-circuit. This includes Thermistor safety sensors, thermal fuse, tilt sensor, varistor, and current limiting. It will not make the room hotter despite relying on heating elements. Safety-wise, never exceed Airfree Lotus power voltage and only plug to a standalone electrical outlet. Do not use a step-down or step-up transformer to convert the voltage output. If the power plug is damaged, have it replace through an authorized service center. Never attempt to repair or disassemble the air purifier by yourself.

Airflow, Coverage, And CADR

Airfree Lotus coverage
Purifying coverage
650 sq. ft. (60 m2)
Airfree Lotus fanspeed

Airfree Lotus Filterless air purifier has a wide 650 sq. ft. purifying coverage same as Onix 3000 and Iris 3000. It uses the same TSS sterilization method that is slow but effective. Ideal of bedroom, living hall, basement, office, or even kindergarten. The air purifier is required to turn on 24x7 and placed at a fixed location for optimal performance. One should expect up to 30 days of purification for a completely clean air overhaul.

BrandPurifying CoverageFan Speed
Airfree T800180 sq. ft.1
Airfree Iris 3000650 sq. ft.1
Airocide APS-300300 sq. ft.2
Air Oasis 1000 G3300 sq. ft.1

Recommended Read

Filters And Performance

Think about it as a bottle sterilizer or but at a higher output. Airfree Lotus patented Thermodynamic TSS technology works in a similar fashion as boiling water. Contaminated air is drawn in through natural air convection. The inner mini-ducts heats the air over 400°F (200°C), killing 99.99% of the allergens and microorganisms like dust mites, pet dander, bacteria, viruses, mold, and pollen in the process. Finally, the air will be cool off inside the machine so only room temperature clean air will be flown back out. The whole purification process is eco-friendly, maintenance-free, emits no ion, and harmful byproducts. According to an independent lab test in Sweden, Airfree Lotus can even reduce ozone by up to 26%. Simply switch it on and you will breathe better as room air quality gradually improved. Great for asthma sufferers or person with severe allergies.

To further demonstrate Airfree Lotus effectiveness, this filterless air purifier has gone through many rigorous real-life scenario tests in ISO laboratories all over the world e.g. Intertek (U.S.), CNAS (China), and INETI Library (Portugal). All the gathered results will be measured before and after the installation of Airfree Lotus.

Highly Recommended

Noise And Energy Usage

Airfree Lotus noise level
Noise level
Airfree Lotus power consumption
Power consumption
52 W

Without the humming noise from the motor fan, filter-free Airfree Lotus is 100% silent at all speed. The murmuring noise operation is great for all places as it would not disturb your daily activity. This includes working, watching TV, cooking, meditation, or sleeping. Airfree Lotus quiet purification is also perfect for a hospital, dentist, nursery home, and meeting room that values absolute serenity.

Airfree Lotus sterilizing thermodynamic TSS Technology power consumption is relatively low (52 W). This is further enhanced with the auto energy saving mode where the air purifier will shut off its ceramic core once it reaches a temperature peak point. For all-day operation, the average electric cost will be $0.19 dollars per day, $5.7 dollars a month, or $68 dollars a year. Compared with other household appliances like an air conditioner, heater, and TV, Airfree Lotus is significantly lower.

Noise TypeDecibels
Airfree LotusSILENT
Breathing10 dB
Rustling leaves20 dB
Whispering/ Quiet library30 dB
Light rainfall40-50 dB
Conversation50-60 dB
Vacuum cleaner/ Hair dryer/ Washing machine65-80 dB
City traffic80-90 dB

Pricing And Maintainence Cost

Airfree Lotus MRSP/ RSP
+- 399.00
Airfree Lotus annual filter replacement cost
Annual Filter Cost
+- 0
^ Replacement filters/ estimated cost
Let's keep this part short. Airfree Lotus is expensive but in the long-run, it wouldn't be because it is an amazing filterless air purifier with a wide coverage and multi-color nightlight. There will never be an annual filter replacement cost to worry about. You are also saving the planet by not contributing to any filter, UV lamp, or carbon sheet waste.
Being a European product with limited availability, it is not easy to find Airfree Lotus other than Amazon with free shipping, bundled addons, used/ refurbished options, and 30 days return policy. Even if you can source it in your local stores, it is impossible to get it at a cheaper price e.g. Best Buy or Walmart. There is no official web store here but you can look up nearby distributors from Airfree's website. If you want to save up more on the initial cost, consider the other alternatives below.

Airfree Lotus VS The Challengers

Airfree Iris 3000

Airfree Iris 3000

Cheaper and sharing the same purifying technology, coverage, airflow performance. You do have to give up on the opening flower petal design.
Airfree Onix 3000

Airfree Onix 3000

Even cheaper with the same performance and TSS filterless technology. The only thing you will have to settle for is a fixed "anti-stress" night light.
Honeywell AirGenius5 HFD320

Honeywell AirGenius 5 HFD320

Technically a hybrid air purifier with a reusable permanent filter. Choose this if you want a conventional purifying method that traps particles rather than boiling them.
Airocide APS-300 Filterless Air Purifier Review

Airocide APS-300

If money is no issue, consider this NASA developed PCO filterless air purifier. Proven to be effective and efficient with no harmful byproducts produced.

Final Thoughts On Airfree Lotus

The only air purifier we reviewed with 100% positive feedback! Before you get overly excited, this is out of the 9 (YES 9) reviewers that gave it a 4-5 stars rating. They like the build quality (made in Europe), the "fun" night light, and completely silent operation. Some are happy with the zero maintenance without the hassle filter replacing. Perhaps what makes them really happy is the drop in allergy symptoms like sneezing, scratchy throat, and headache. Bring to a conclusion, Airfree Lotus filterless air purifier is exactly what we would expect from it. No more, no less. It can permanently eliminate allergens like mold, spores, mildew, pollen, germs, dust mites, pet dander, and even odors. If you are OK with the slow purifying time frame, this would do well.


  • Eco-friendly, sterilization method that does not require maintenance.
  • No recurring cost as the air purifier does not use any filters.
  • Fits anywhere with its compact and lightweight body.
  • Multi color light with adjustable brightness intensity.
  • Complete silent operation that works exceptionally well in the bedroom.
  • Consistent, low power consumption.
  • 2 years manufacturer warranty.


  • Purification is progressively slow that will take days to clear out contaminants.
  • Less effective in removing dust and odor compared with a conventional filter-type air purifier.
  • Expensive vanilla unit with no extra cleaning features.
Airfree Lotus Filterless Air Purifier Review

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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